Planoqraph co



H. I. ROBERTS! BALING PRESS.

APPLICATION FILED DEC. 26, I917.

Patented Oct. 7, 4 SHEETSSHEET H. I. ROBERTS. BALING PRESS.

APPLICATION HLED DEC.26, I917.

' Patented 001;. 7, 1919.

4 SHEETSSHEET 2 H. I. ROBERTS.

BALING PRESS.

. APPLICATION nuao DEC-26. 1911. 1,318,]. 10. Patented Oct. 7,1919.

4 SHEETSSHEET a .F @Lw Q TIIB COLUMBIA PLANOGRAI'H C0,, wAsmNumN, I). c.

H. l. ROBERTS.

BALING PRESS.

APPLICATION FILED m: c.2a,1911.

Patented Oct. 7, 1919.

4 SHEETS-SHEET 4 srrns PA nuen ronwnn'rn ROBERTS, or LIVERPOOL, ENGLAND.

BALING-PRESS.

Specification of Letters Patent.

Patented Oct. *7, 1919.

Application filed December 26, 1917. Serial No; 208,987.

This invention relates to improvements in presses for baling ha straw, cotton, wool or other materials and has particular reference to portable horizontal presses, though the presses may be fixed, if required, in any position. The improvements are designed to enable the press to follow any ordinary type of perpetual press andto allow of the material so pressed in-the latter being compressed to a greater density in the new ar rangement of press so that such material will occupy less space. A further object is to enable the feeder portion of the per petual press to be attached to the new construction of press and so constitute one press instead of two. Y

My inventioncomprises generally an im proved construction of supporting frame;

an improved arrangement of receiving and pressing boxes adapted to revolve about a central axis for the purpose ofreceiving the material to be compressed and to allow of its compression; an improved press head arrangement for the boxes; an improved arrangement for guiding the follower and togglelevers; an improved arrangement of follower; an improved arrangement of toggle levers for operating the follower;

means for actuating the toggle levers; devices for centralizingand holding the press boxes in the required position duringcompression and withdrawal of the press head; means for automatically stopping the feed when a predetermined density has been reached the combination with the revolving ,press boxes of a hydraulic cylinder and ram and means for exerting pressure on theram together with other details which will be hereinafter referred to.

My invention will be fully described with reference to the accompanying drawings in wh1ch,

Figure I, is a side elevationof a press con. structed, in accordance with my invention. Fig. 2, plan of same partly in section, Fig. 3, elevation of the gearing end partly in section, V

Fig. side elevation of a press 'with hy draulic attachment showing modified form of bearing arrangement for the press boxes,

Fig. 5-, plan of same. Fig. 6, side elevation of a complete press with certain modified arrangements show- Fig. 7-, plan of same,

Fig. 8, .plan of the press boxes shown in Fig. 7, to an enlarged scale indicating the means for centralizing and locking the boxes in compressing position, 7

Fig. 9, end elevation ofsame, and Fig. 10, a modified arrangement of means for centralizing the press boxes.

' In accordance with my invention and referring particularly to Figs. 1 to 3, I provide a main frame a of any suitable construction, though I find it convenient to make it of channel section adapted to suping also a known feeder arrangement or perpetual press, 7

port the pressing boxes, the toggle Or other I mechanism and follower and means-for actuating same. The .frame in the portable construction is supported upon road wheels .7). At the forward end of the frame a I 10- cate the pressing boxes 6 of which there are two in axial line with each other, though I may employ more than two if convenient or necessary. Theboxes b are arranged to be capable of rotating horizontally about a vertical axis c,'though where the conditions are suitable they may rotate about a horizontal axis. In either case the axis 0 may be journaled in the main frame a and have the boxes 6 suitably secured to it or they may be rotated about a fixed axis or upon circular rails adapted to be carried on the frame. In Figs. 1 to 3 I have shown the axis a as being fixed to the main frame and mounted on this between the upper and lower frame members is a rectangular or polygonal casting at each flat side of which in conjunction with the shaft 0 forms the head of the press against which a lashing plate e is placed or fixed. The body of each press box extends from the casting to which it is securely fixed and is open at the outer end f for the reception of the material to be further compressed and a follower lashingplate 9, Figs. 4: and 5- and 6. The sides and top or bottom of each press box are provided with doors h preferably but not necessarily hinged as at z' to thepress head cl to allow for the compressed material being lashed and for its discharge either at the top or'bottom of the box. The doors may be secured in posie oted on a pin 70 at its open end carried by the press box, In conjunction with the frame I employ a central link m pivoted at its lower end to the door It, the upper end of the link having pivoted to it by pin 0 a hand lever 29 adapted to bear upon the.

cross bar of the frame y' when the door is held in the locked posltion. I combine with thls arrangement whlch 1s shown more clearly in Fig. 8, means for holding the successive charges of material to complete one charge, within the press box as the follower recedes and to insure that such holding means are removed out of the way of the follower prior to its receding from the box, the arrangement being such that the holding means are bound to be withdrawn before the press box doors can be opened for the discharge of the bale. To this end I employ links p pivoted to the forward portion of the press box at Q such links havlng double inclined projections 1' formed on them to pass within the box. The projections r normally project 7 inside the box and are moved outwardly by the follower in the act of pressing the material, and are subse'quentlymoved inwardly by any approved means. In connection with the links, I employ double armed levers-a having a long and short arm, connected to the links by pins t, the long arms 25 projecting over the doors h when the latter are closed. Before the doors can be opened it is necessary to pull the long arms of lovers 8 outwardly so that their short arms 6 bear against the press box and force the links and their projections outwardly and hold them in that position. The press box doors can then be opened by operating the catches in the opposite way to that described.

The press boxes 6 are built up on a subsidiary frame M which may be arranged close to the lower or upper member of the main press frame a, the opposite side of the box to the subsidiary framebeing of skeleton formation such as might be constituted "by bolts 1), bars or rails connected to uprights w from the subsidiary frame a so as to leave space between the parts for discharging the bale. In general practice the frame work referred to as wellas the main frame is substantially of skeleton formation to allow of doors being opened if required at-every side 7 of the press box.

The press boxes may be turnedaround by hand so as to bring one box into line with the feeder part 10 of the perpetual press shown in Figs. 6 and 7 and the other in line with the newpress follower at Figs. 1 to '3 or with the hydraulic ram 1 in Figs. 4 to 6, thus enabling onebox to be charged with material from the aerpetual press while'the material in the other is subjected to additional compression. The means for centralizing and holding the press boxes in position will be hereinafter described.

The mechanism shown in Figs. 1 to 8 for compressing the material comprises a follower :0, toggle lever mechanism and means for actuating the toggle levers. For this purpose I employ a horizontal screw 3 hav ing right and left handed threads with a nut 4: mounted upon each threaded portion. The outer ends of each pair of toggle levers (there are two pairs) are coupled to the nuts while their inner ends are connected to vertical pins 5 and 1% carried respectively by the follower a: and the main press frame a. The toggle levers are moved inwardly toward the axial line of the press and outwardly from that line by a spur wheel 6 fixed upon the center of the screw shaft and actuated by carrier pinions '7 carried upon links 8 centered respectively upon the screw shaft or upon the screw and driving shafts 9 the in gear with'themselves andwith the driving pinion and wheel as the toggle levers open and close. The screw 3 may be driven direct by hand or by animal-operated means conveniently geared thereto under the frame.

The two pins or studs 5 connecting the toggle levers to the follower w serve to support the overhanging weight of the latter and toggle levers for which purpose they are secured at their lower ends in a base 12 slidable in or upon the main press frame a, friction being reduced by the employment of a roller or rollers 13 at the rear end of the base running upon the main frame a. This roller also guides the follower and toggle arms. The outer pair of-toggle arms are pivoted onjpins let carried by the main frame (a i In Figs. 6 to 10 I have indicated means for centralizii'ig the press boxes with the axial line of the press ram, such means being employed in conjunction with any ordinary form of perpetual press. The main features of the feeding mechanism of the perpetual press are indicated in'Figs. 6 and T but these are well known and do not concern my invention except as to the operation of certain chain '18 passingat the right hand end over a chain pulley 19 the opposrteend of the chain passingjover J chain pulley 20' mounted .upon a shaft 21 and flanked at each side by screwed extensions 22 one of which has a left hand and the other a right hand tated by hand the roller engages with one of the screws dependingiupon which way the boxes are moved and entering the thread the box is drawn into axialline with the ram, the roller finally getting into the annular groove 25 between the screws 22.

When the ram is withdrawn the press box may be moved out of the central position by pressing-it in either direction so as to engage the roller 24 with one of the screws which.

will then move the boxes about their central pivot, the full rotary ;motion being afterward completed by hand. To assist in keeping the press boxes in axial line with the rain I also secure to the end'of eachpress box a projecting stud 26 operating in-cohj-unction with two catchespivoted'to the framed at 27 as will be seen fro miFig. 8. Each of the catches is provided with a handle 28 and with a bent inner arm 29 the extreme'end of which normally bears against; t p 30 against which it is heldby" aspring 31;

Each arm 29 has an inclined face 29?. When to free the stud 26 and allow th'e'roller 24' being engaged with one or other of the screws in the manner previously described.

Instead of the chain wheel ands'crew "device hereinbefore described Inlay arrange on the underside of each pressbox a grooved plate or a series of plates 32 as shown in- Fig. 10 such plates leaving 'a central track 33 and branch tracks 34 with which a: roller 35 engages, such roller bei'n carried by a longitudinal bar (not shown connected to the baler ram and 'reciprocated by it as 'i'n the ease of the chain previously referred to,.

the press box beingpushed in oneor other direction to engage with the" roller 35 and so move the box into central position or toward one side in the same manner, as de-' scribed in connection with the cha-in gear.

Another feature-of myinventionconsists1 in means for, automatically stopping the feeding of material by. the perpetual-press, when the required density of thematerialj being compressed has been reached, jsuch means comprisingaplun er head36 slid an within as presshead a and manna projecting within the box. The plunger has a shank or spindle 37 passing through the head into engagement with the free end (or coupled to the free end) of a short armed lever 38 mounted upon a shaft 39 passing to the outside ofthe press head and having mounted upon it a long armed lever 40'whose upper end is in engagement with a spring 41 which can be adjusted to anyrequired resistance by the set screw and lock nut 42. The perpetual press of known construction has normally connected with it a slidablerod 43 which moves backward and 7 forward in thewell known way. This rod has mounted upon it an adjustable stop 44 projecting in line with the upper end of the lever 40. When, therefore, the required density of material has been reached in the press'box, the plunger 36 is pushed into a position with its outer end flush with the press head'and "in doingso the upper end of the lever 40 is moved against the influence of the spring 41 so that when the slidable rod 43 is drawn backward the projection 44 upon it will engage the lever 40, lift the rod and stop the usual feeding mechanism. The rod 43 is. connected with the feedin'g'mechanism'in any approved way, and it is drawn backward or reciprocated by means of an arm 44 connected to one end of it. The arm 44"" is connected to a link 44", which is coupled to a rod 44, which is connected to any longitudinally recipro= cating part'of the machinefsuoh as the bar 44. T

form for the purpose of providing'bearings 48 within the pillars for the head of the press 03 blocks 49being arranged at the open volving boxes, similarletter s herein indicat- The press cylinder in -this case is held in position in the; At the opposite end of the complete apparatus in cluding the perpetual press already referred; to I provide any usualconstruction ofh-ying; corresponding parts.

main frame (6 of the apparatus.

the pump being connected with theausmil v i In Figs. 4 and 5 I have indicated the comfeed and return pipes 51 with the ram cylinder. In Figs. 6 and 7 I have also indicated the central press box head provided with ball bearings at the underside to enable the boxes being moved around easily.

What I claim and desire to secure by Letters Patentisz- 1. In a baling press a plurality of press boxes mounted upon and rotatable about a fixed axis, means for inclosing the sides of the boxes, a feeding box for the material to be pressed located at one side of the axis on which the boxes are mounted, a plurality of central abutments in the rotatable boxes against which the material is to be pressed and a press follower arranged at the opposite side of the press boxes to that at which the feeding box is located.

2. In a baling press a plurality of press boxes mounted upon and rotatable about a fixed axis, means for inclosing the sides of the boxes, a feeding box for thermaterial to be pressed located at one side of the axis on which the boxes are mounted, a plurality of central abutments in the rotatable boxes against which the material is to be pressed, press pillars bent into U-shaped form at one end to constitute bearings in which the press head can revolve, blocks secured to the pillars at their open side to form part of said bearings and a press follower arranged at the opposite side of the press boxes to that at which the feeding box is located.

3. In a baling press a plurality of press boxes mounted upon and rotatable about a fixed axis, a feeding box for the material to be pressed located at one side of the axis on which the boxes are mounted, a plurality of central ahutments in the rotatable boxes against which the material is to be pressed, doors'hinged to the central presshead of the press boxes themselves and catch devices comprising open frames pivoted to the boxes at the opposite ends to the hinges for the covers, co-acting levers and links cou pled to the open frames and to the press box lids respectively for locking the doors in position and a press follower arranged at the opposite sideof the press boxes to that at which the feeding box is located.

4. In a baling press a plurality of press boxes mounted upon and rotatable about an axis, said boxes being located between a feeding box at one side and a press follower at the other, means for moving said boxes intofaxial line with the press ram or fol lower comprising a chain mounted upon chain wheels adapted to be reciprocatedfrom the perpetual press feeding mechanism, right and left hand screws forming part of one of the chain wheels and a roller carriage'by each press box adapted to engage with one orother of the screws, said mechanism also assisting in moving the press boxes laterally from the central position ready to have their complete rotation effected by hand.

5. In a baling press a plurality of press boxes mounted upon and rotatable about an axis, said boxes being located between a feeding box at one side and a press follower at the other, means. for holding the press boxes in axial line with the press ram or follower comprising a stud secured to each press box adapted to operate springcontrolled pivoted arms or catches so as to move one of sald catches about its plvotal point out of the-way as the boxes reach at the other, operating arms projecting over the press box doors when the latter are closed said arms being pivoted to the press frame andprovided with short arms hearing against said frame when the arms are turned about theirpivots to withdraw the holding means out of the press box when moved away fromi the press box doors to admit of the latter being opened for the discharge of the bale.

7. In a baling press a plurality of press boxes mounted upon and rotatable about an axis, said boxes being located between a feeding box at one side and a press follower at the other, means for compressing the material comprisingrtwo pairs'of toggle levers, the inner ends of one pair being pivoted to the follower while the inner ends of the other pair are pivoted to the frame of the press, a central right and left hand screw mounted in bearings and carrying nuts to which the outer ends of both toggle,

lovers are coupled, means for driving the screw from a power source comprising a gear wheel on the power driven shaft, a wheel on the screw, carrier wheels gearing with each other and with the I wheels on the shaft screw and links movable'about the shaft and screw carrying the pins upon which the carrier wheels are mounted so as to keep the train of wheels in constant gear during the operation of the press, means for supporting the rear end of the follower and the toggle arms'comprising a base sliding in the main frame of the press and one or more rollers carried by the base toreduce friction.

8. In a baling press a plurality of pressboxes mounted upon and rotatable aboutan axis, said boxes'belnglocated'between 1 feeding box at one side and a press follower at the other, means 'for automatically stopping the feeding mechanism of the perpetual press when the required density of press material has been attained, comprisv mg a plunger in each press box adapted the usual reciprocating rod of the perpetual press feeding mechanism.

9. In a baling press press pillars bent into U-shaped form at one end to form bearings in which the press head can revolve and blocks secured to the pillars at their open 15 side to form part of said bearings.

In testimony whereof I have hereunto set my hand in the presence of two witnesses.

HUGH IORWERTH ROBERTS.

WVitnesses:

A. T. SHANKS, L. HIND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

